주수별 임신 가이드

임신 1주차 임신 1주차는 임신이라는 긴 여정의 토대를 마련하는, 아직은 눈에 보이지 않는 시작 단계입니다. 엄밀히 말하면 이번 주에는 아직 수정이 이루어지지 않았습니다. 몸이 다가올 임신 가능성에 대비해 준비를 하는 시기입니다. 자궁 내막이 새롭게 형성되고, 호르몬 수치가 조절되며, 배란 과정을 위한 준비가 시작됩니다. 아직 임신 기운을 느끼지 못하거나 아무런 증상이 없을 수 있지만, 우리 몸은 위대한 여정을 위해 조용히 움직이고 있답니다.

Week 2 is biologically the week of the "Big Meeting," meaning fertilization takes place. Technically, you are still at the very beginning of your pregnancy, but the most important date of the century is about to happen inside your body.

Week 3 is one of the most mysterious, microscopic, yet vital weeks of your pregnancy journey. This week, the fertilized egg divides rapidly as it travels toward the uterus to implant itself. You may not be 100% sure you are pregnant yet, but a big settling-in plan is already in motion inside.

임신 4주는 임신이 공식적으로 확인되는 매우 중요한 시기입니다. 대개 이 무렵 생리가 늦어지면서, 테스트기의 두 줄을 통해 임신을 확인하게 됩니다. 아기는 현재 양귀비 씨(1-2mm) 정도의 아주 작은 크기예요. 이제 배아라고 불리는 이 소중한 생명은 성장을 이어가기 위해 자궁에 단단히 자리를 잡았습니다.

Week 5 is when pregnancy starts to feel real. At this stage, your baby is about the size of a poppy seed (2 mm). It is no longer just a line on a test strip; you are in a process of change that resonates through every cell of your body. Your baby’s heart begins its first beat this week!

Week 6 is an exciting milestone in your pregnancy journey where things start feeling more real, and you may even see your baby’s heartbeat for the first time. Now about the size of a sweet pea (5-6 mm), your baby’s facial features and organs are beginning to take shape. Meanwhile, your body is going through significant hormonal changes to welcome its new guest.

Week 7 is a time when your baby’s development gains momentum and you begin to feel these physical changes more intensely. Your baby has doubled in size since last week! They are now about 10 mm long, which is roughly the size of a blueberry.

Week 8 is one of the most important milestones of your pregnancy. Your baby is technically preparing to transition from the embryo stage to the fetus stage. While your baby, now about the size of a raspberry (1.6 cm), continues to develop their heart and brain rapidly, this week may be a time when pregnancy symptoms like nausea and fatigue peak, testing your patience.

Week 9 is a major milestone in your pregnancy journey because your baby is now medically transitioning from an embryo to a fetus. While your baby’s development continues rapidly, reaching about the size of a grape (2.3 cm), you may feel pregnancy symptoms most intensely during this period as hCG hormone levels peak. Hang in there; the relief of the second trimester is just around the corner!

Week 10 is an incredible week, often considered a critical milestone in pregnancy. Your baby has reached about 30 mm in size, roughly the size of a plum. Almost all of their vital organs have finished forming, and they are now moving from the construction phase to the growth and maturation phase. For you, this is a time when clothes start feeling a bit tight and your pregnancy begins to show.

11주차는 임신 초기(제1삼분기)가 끝나가는 시기로, 아기의 성장이 빨라지고 산모님도 서서히 활력을 되찾기 시작하는 가교와 같은 시기입니다. 이제 아기는 약 라임(4~5cm) 정도의 크기입니다.

Week 12 is like a graduation week in your pregnancy journey. Congratulations! You have reached the end of the first trimester. This week, your baby has reached the size of a lime (5.4 cm). It is a very special period where you may feel a great sense of relief both physically and emotionally, as development now enters the maturation phase. With the end of this week, you will successfully complete your first trimester! Your baby is now fully ready and starting their growth marathon.

Week 13 opens the door to a brand new phase in your pregnancy journey. You have now officially entered the second trimester — congratulations! Your baby has reached the size of a lemon (about 7-8 cm) this week. This is a transition week where your body adapts better to pregnancy, your energy slowly begins to return, and most expectant parents start to feel more balanced. For your baby, it is now a time of rapid growth and strengthening. The vital organs are all in place; now, the details and fine-tuning begin. Movements are increasing, reflexes are developing, and that tiny body is becoming more defined every day. With week 13, pregnancy becomes more fluid; morning sickness may decrease, emotions may settle, and the enjoyable parts of this journey start to be felt more deeply. You are no longer just moving forward — you are growing.

14주 차에 오신 것을 환영합니다! 이제 임신의 황금기라고 불리는 임신 중기에 공식적으로 접어드셨네요. 피곤하고 입덧으로 힘들었던 초기 3개월의 시간은 이제 대부분 지나갔습니다. 이번 주 아기는 레몬 한 개 정도의 크기(약 8.9cm / 42.5g)로 자랐으며, 얼굴 근육과 신장 같은 주요 기관들이 계속해서 발달하고 있습니다. 이제 기운을 차리고 이 소중한 발달 과정을 즐기실 시간입니다.

15주차 15주는 임신의 황금기라 불리는 시기의 한가운데에 있습니다. 아기는 이제 사과나 오렌지 정도의 크기인 약 10cm까지 자랐으며, 배 속에서 세상을 탐험하기 시작합니다. 이 시기에는 아기의 골격 계통 발달이 빨라지면서 움직임이 더욱 정교해집니다. 산모님에게 이번 주는 임신이 신체적으로 실감 나기 시작하면서도 여전히 에너지가 넘치는 아주 좋은 시기입니다.

Week 16 is a major highlight of your pregnancy journey. At this stage, you may begin to feel your baby’s first movements, which are often described as light flutters or bubbles. Your baby is now the size of an avocado and is moving energetically, measuring approximately 11-12 cm in length.

17주 차에 오신 것을 환영합니다! 아기는 이제 커다란 석류(약 13cm) 정도의 크기예요. 이번 주부터 아기의 몸이 지방을 저장하기 시작하는데, 이는 아기 특유의 귀여운 살집이 만들어지는 기초가 된답니다. 산모님께는 식욕이 늘고 에너지가 넘치지만, 허리 통증이 조금씩 느껴지기 시작하는 시기이기도 해요.

18주 차에 오신 것을 환영합니다! 이번 주는 임신 기간 중 가장 중요한 이정표 중 하나인 정밀 초음파 시기에 접어듭니다. 아기는 이제 고구마만 한 크기예요. 이제 아기는 엄마의 목소리를 또렷하게 들을 수 있고, 뱃속에서 작은 손가락을 빨며 시간을 보낸답니다.

19주 차에 오신 것을 환영합니다! 이제 여정의 절반 가까이 오셨네요. 아기는 이제 큰 망고나 토마토 정도의 크기(약 15cm)예요. 이번 주부터 아기의 피부는 아기를 보호해 주는 태지(버닉스 카제오사)라는 특별한 물질로 덮이기 시작합니다. 산모님께는 식욕이 늘어나는 시기이지만, 요통과 속쓰림이 조금 더 느껴질 수 있는 때이기도 합니다.

Congratulations! You have reached the halfway point of your pregnancy. Week 20 is a major milestone where your baby is now the size of a banana. You will notice their movements are evolving from tiny flutters into distinct kicks as they grow stronger. This is an important time for both celebration and monitoring your baby’s health in detail.

21주 차에 오신 것을 환영합니다! 축하드려요, 이제 절반의 여정을 지나 임신 후반기에 접어드셨네요. 아기는 현재 큰 당근 정도의 크기로 자랐습니다. 이번 주에는 아기의 소화 기관이 계속 발달하며, 엄마는 아기의 태동을 이전보다 훨씬 더 뚜렷하고 규칙적으로 느끼기 시작할 거예요.

Welcome to week 22! Your baby is now about 14-15 cm long, roughly the size of a coconut or a papaya. This week, your baby’s appearance is like a miniature version of how they will look at birth. For you, it is an interesting phase where your appetite increases, but you may also start experiencing forgetfulness and clumsiness, often called pregnancy brain.

임신 23주는 임신 여정에서 매우 중요한 전환점입니다. 의학적으로 이 시기는 아기가 자궁 밖 세상에 적응하는 능력을 갖추기 시작하는 생존 가능 한계(viability)의 시작으로 간주됩니다. 현재 아기는 약 29cm, 몸무게는 500g 정도이며 가지나 큰 망고 정도의 크기입니다.

Week 24 is a wonderful week as you approach the end of your second trimester and your baby has now reached the size of an ear of corn. This week marks a medical milestone with the start of the glucose screening test period, while your baby’s lungs speed up their development to prepare for the outside world.

25주 차는 임신 중기의 막바지에 접어드는 시기로, 아기가 빠르게 몸무게를 늘리며 외부 세계에 대해 사람처럼 반응하기 시작하는 때입니다. 현재 아기의 키는 약 34.6cm, 몸무게는 약 660g 정도이며, 콜리플라워나 중간 크기의 멜론만 한 크기입니다. 이 시기에는 아기의 폐와 혈관이 계속 발달하며 세상 밖으로 나올 준비를 이어갑니다.

Welcome to week 26! You are nearing the end of your second trimester. Your baby is now about 35 cm long. The biggest highlight in your baby's world this week is finally opening their eyes!

With week 27, you are entering the Third Trimester, the most exciting and final stretch of your pregnancy. This week is a medical and biological milestone, as your baby’s chance of survival in the outside world has now risen above 90%. Your baby is now about the size of a cauliflower or a large head of lettuce (approximately 36.6 cm / 875 grams).

28주는 임신 여정 중 임신 후기가 공식적으로 시작되는 시기입니다. 이번 주는 아기의 생존 가능성이 매우 높아지고, 엄마의 몸이 출산 연습을 시작하는 중요한 전환점입니다. 현재 아기는 커다란 가지 하나 정도의 크기입니다.

Week 29 is an exciting stage as you move deeper into the third trimester and prepare for the grand finale of your pregnancy. This week, your baby has reached the size of a butternut squash or a large cauliflower (about 38-39 cm and 1.1-1.2 kg), and you may begin to feel the physical weight more clearly. Every movement becomes more meaningful, and every preparation feels more real. For your baby, this is a week of perfecting survival skills. While their lungs gear up to breathe the air of the outside world, their brain continues to weave a complex network with billions of new neurons. They are no longer just a growing life inside you; they are a tiny individual with their own character, reacting to light, sound, and even the flavors of the food you eat. Your body, meanwhile, moves into a mode of preserving its reserves. As your blood volume approaches its peak, your heart and lungs work harder than ever. Week 29 is a time when patience, physical endurance, and the silent bond you share with your baby are felt most strongly. You have traveled most of the way; now, each passing day brings you one step closer to the miracle.

Week 30 is a time when you are approaching the final stretch of your pregnancy journey and preparations are becoming more serious. Your baby is now as heavy as a large cabbage and is about 40 cm long. This week is a stage where your baby begins to react to the outside world not just physically, but mentally as well. For you, while managing increasing back pain and sleeplessness, the countdown to the day you hold your baby is picking up speed. Every kick is now stronger, and every movement is felt more clearly.

Week 31 marks a significant period in the third trimester as the countdown to delivery becomes more tangible. You have successfully navigated the majority of your pregnancy. This week is a crucial filling-out phase for both you and your baby. Your bump is now much more prominent, and while your physical activity might have slowed, your mind is likely occupied with thoughts of your baby's arrival. For your baby, this week involves major advancements in perceiving the world. They are refining their five senses in preparation for life outside the womb. While brain connections develop at a rapid pace, fat stores are accumulating to give them a fuller baby shape. Pregnancy reaches a higher physical intensity during week 31. You may experience shortness of breath, abdominal pressure, and sleeplessness; however, every strong kick is a sweet reward that reminds you of the purpose of this journey. You are nearing the end now, and each day brings you one step closer to the miracle you will soon hold in your arms.

32주는 임신이라는 긴 여정의 막바지에 다다르는 시기로, 출산을 향한 본격적인 신체 변화가 일어납니다. 이제 아기는 약 42cm의 호박 크기만큼 성장하여 자궁 속 공간을 가득 채우게 됩니다. 이 시기 아기의 뇌세포는 신경 연결망을 비약적으로 발달시키며 인지 능력을 키워나가고, 엄마로부터 항체를 전달받아 외부 환경에 대응할 면역 체계를 형성하기 시작합니다. 신체적 무게감으로 인해 일상이 다소 힘들 수 있지만, 이는 아기가 건강하게 성숙해가는 소중한 과정입니다.

Week 33 is a stage in the final stretch of your pregnancy where your baby is nearly ready for the outside world, though space inside the womb is getting quite tight. This week, your baby is about the size of a pineapple. While your body performs important rehearsals for birth, your baby’s immune system and bone structure are beginning to reach their strongest form.

As you enter week 34, you are in the final stretch of your pregnancy journey. Your baby has grown to the size of a cantaloupe and weighs approximately 2100 - 2300 grams. Reaching this week is a major medical milestone, as babies born now typically adapt well to life outside the womb with medical assistance and face minimal risks of long-term health complications.

35주 차에 오신 것을 환영합니다! 임신 마지막 단계에 접어들었으며 이제 출산까지 몇 주 남지 않았습니다. 아기는 이번 주 기준으로 약 46cm의 길이와 2400g의 몸무게를 가졌으며, 멜론 크기만큼 자랐습니다. 신체 발달이 거의 마무리된 아기가 외부 세계에 적응하기 위해 마지막 준비를 하는 동안, 이 시기에는 산모님의 몸이 무거워지는 것을 느낄 수 있습니다.

Welcome to week 36! Your pregnancy has now reached the early term stage, meaning the risk of preterm birth has passed. Your baby, now approximately the size of a head of lettuce, is busy completing final preparations for birth as your due date approaches.

Welcome to week 37! Congratulations, your pregnancy is now medically considered early term. This means your baby's organs are developed enough to survive in the outside world without assistance, and labor could start at any moment. Your baby is now about 48.5 cm long and weighs 2.85 kg, roughly the size of a bunch of Swiss chard or a large melon.

Week 38 marks a major milestone as your pregnancy is now full-term, and labor could begin at any moment. Your baby is fully developed and ready for birth, measuring approximately 50 cm and weighing 3100 grams—roughly the size of a watermelon. This week, your body is entirely focused on the final preparations for delivery.

39주 차에 오신 것을 환영합니다! 이제 임신이 공식적으로 만삭으로 간주되며, 출산 가방을 문 앞에 두고 아기를 만날 날이 며칠, 어쩌면 몇 시간밖에 남지 않은 대망의 마지막 주입니다. 아기는 현재 약 수박 크기이며, 평균 3300g의 몸무게와 50cm의 키로 세상 밖으로 나올 준비를 모두 마쳤습니다.

Week 40 is the official finish line of your pregnancy journey, and your due date has finally arrived. This week, your baby has fully completed their development and is ready to enter the outside world at any moment. For you, it is a time when excitement and anticipation reach their peak. Your baby is now about the size of a pumpkin or a large watermelon.

Week 41 is a stage in your pregnancy journey where your expected due date has passed, a phase medically known as being post-term that requires a little extra patience. Your baby is now about the size of a watermelon and, although they are fully ready for life outside the womb, they haven't quite given up their cozy home just yet.

Week 42 is the final stage of pregnancy, known as post-term or overdue. This medical milestone marks exactly two weeks past your due date, a time when clinical monitoring becomes essential. Your baby is now about the size of a large watermelon and has completed their final preparations to enter the outside world from the womb.